Concrete-molding apparatus.



PATENTED DEU. 25, 1906. A. A. PAULY 6L D. HEINSELMAN. CONCRETE MOLDING APPARATUS.

APPLICATION FILED MAY 22,1906.

3 SHEETS-SHEET 1.

` No. 339,782. PATBNTED 1320.25, 1906.

, A. A. PAULY an D. HBINSELMAN.

ooNoIRET-E MoLDING APPARATUS.

APPLIOATION FILED MAY 22,1906.

3 SHEETS-SHEET 2.

No. 839,782. y PATBNTED DEG. 25, 190e.

A. A. PAULY @L D. HBINSELMAN.

CONCRETE MOLDING APPARATUS.

APPLICATION FILED 11m22.190s.

3 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE. ALBERT A. PAULY AND DAVID HEINSELMAN, or YoNGsTowN. OHIO- CONCRETE-MLDING APPARATUS.

specification of Letters Patent.-

Patented Dec. 25, 1906.

Application led May 22, 1906. Serial No.` 318,205.

and DAVID HEINSELMAN, .citizens of the United States of America, residing at Youngstown, in the county of Mahoning and State of Ohio, have invented certain new and useful Improvements in Concrete-Molding Apparatus, of which the following is a specification, reference being had therein to the accompanying drawings..l

This invention relates to certain new and useful improvements in concrete-molding apparatus particularly designed for molding locks and plates, such as can be used in constructing sewers, manholes, conduits, meterboxes, cisterns, and catch-basins.

The invention has for its primary object to provide a mold .and apparatus for expeditiously forming blocksv and. plates from a plastic composition, as concrete. The present invention is an improvement upon an apparatus disclosed in an application for patent filed January 22, 1906, Serial -No. 297,167, allowed May 3, 1906, wherein certain elements, las presses, were utilized for forming rectangular concrete blocks. The

apparatus presented inthis application'is particularl adapted for forming curved plates or bibcks having interlocking ed es to permit several of saidplates or blocks eing assembled to form a sewer, conduit, or similar structure.

The detail construction of our improved apparatus will `be presently described and then specifically pointed out in the claims.

Referring to the drawings accompanying this application, Figure 1 1s a vertical sec-' tionalrview of one of the presses of our improved'apparatus, illustratin a mold positioned eneath said press. Fig. 2 is a crosssectional view of our improved mold. Fi 3 is a perspective view of the apparatus. ig. 4 is a similar view of one of'the plates or blocks formed by the apparatus. Fig. 5 is a perspective view of a mold-plate used in connection with the apparatus. Fig. 6 is a fragmentary perspective view of .a press. Fig. 7 is a detail-elevation of a portion of the press. Fig. 8 is a perspective view of one ofl the plates or blocks formed by our improved apparatus, and Fig.9 is a similar view of a guide-arm. To put our invention into ractice, we construct the apparatus where ythe operation of formin plates or blocks can be continuously per ormed, thus insuring a large out- .sitioned beneath said die.

put from a single apparatus. A circular track 1 is employed upon which flat-bottomedpcars 2 are moved, these cars carrying our improved molds 3. Each mold consists of abcd-plate 4, having a curved upper face 5 upon whichthe concrete blocks or plates are formed. The bed-plate 4 is provided with end walls 6 and hinged side walls 7, the latter being secured to the former by clasps 8 of a conventional form. The upper .edges of the sides 6 and the ends 7 extend above the face of the mold and form a frame to hold the material in position to be acted upon by the die member of the press,the extended sides thus confiningv the surplus material during the compressing action. The molds 3 are detachably mounted-upon the cars 2 in order that they can be removed and molds havin bed -plates of different curvature place thereon. t Y

At diametrical points upon the track 1 we locate presses 9 and 10, and as said presses are identical in construction we deem it only necessary to describe one of said presses. A

lpress comprises four standards 11, supportguiderods 19, carried by `the standar s 11.

The upper ends ofthe rods 19 are held by hinge members'20, which are easily disengaged from said rods to permit of the die 17 being removed when disconnected from the de ending rods 16 of the eccentrics 15.

he area of the die 17 is approximately the same as that of the molds and is adapted to descend 'into the molds 3, when they arepo- The bottom of the die is formed with a convex surface 21,

conforming in curvature tothe bed-plates 4 of the molds 3. The convex surface 21 at one end of the die terminates in a bead 22 and at the o posite end in flute or groove 23, the bead and) groove forming the interlocking edges of our improved concrete plates or blocks. The beadfedge 22 and fiute edge 23 of the molded block thus come next to the stationary sides 6 of the mold-casing, as

IIO

shown, and when the die is elevated and the hinged sides 7 o ened the block can be re- 1 `oved by suitablel implements a plied to the solid ends ofthe blocks. The re atively fragile beaded and fluted edges of the blocks are thus protected during the removing operations. Another advantage of this construction is that the rib-like edges 22 23 of the dies 17,'Which form the beads and flutes of the blocks, operate close to the inner faces of the stationary sides 6 of the mold-casing, and thus serve as cut-off devices tothe material and feed only the required amount into the mold.

In Fig. 3 of the drawings we have illustrated, in conjunction with the apparatus, a

track 24, located contiguous to the press 9. This track is employed for conveying the `finished product to a suitable drying or curing compartment (not shown) disclosed in the above-mentioned application.

In forming concrete blocks or lates the mode of procedure is as follows: T 1e mold 3,

. in front of the press 10,is filled with concrete and moved beneath the die 17 of said press and subjected to a pressure. The mold ils then moved forward, refilled, and then moved forward to the press 9, where it is subjected to a final ressure. After the mold has been move from beneath the press 9 the side walls 7 are lowered and the finished product removed, which in Fig. 8 of the drawings we have designated 25.

During the above operation other molds are being filled, pressed, and refilled, and it is obvious that a plurality of cars, molds, and presses can be economically used in connection with the circular track.

By referring to Fig. 8 it will be observed that the curved plate -or block is provided with a grooved or fluted edge 26 and a beaded edge 27. When a luralityof these blocks or plates are assemb ed t conform to a collar, cylinder, or sleeve, the edge 27 of one block or plate will interlock with edge 26 of its adjoining block or plate, thus providing a non-collapsible structure capable of withstanding considerable external pressure. Where the blocks or plates `are used for sewers and conduits, I form some plates or blocks 28 (see Figs. 4 and 5) with openings 29 for manholes, this being accomplished by placing a mold-plate 30 upon the bed-plate of a mold.

What we claim, and desire to secure by Letters Patent, is-

1. In a molding apparatus a press-frame including spaced side members, guide-rods connect-ed at one end to `said side members and extending parallel therewith, brackets each having a hinged member adapted to be detachably engaged with the free end of one detachably engaged with the free end of onel of said guide-rods, a press-die, guide-arms vconnected to said die and slidably engaging said guide-rods, and a mold adapted to be engaged by said die.

In testimony whereof we affix our signatures in the presence of two witnesses.

ALBERT A. PAULY. DAVID HEINSELMAN. Witnesses:

MAX H. SoLovITz, K. H. BUTLER. 

